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Siste Shavingcutebaresexslaves Sv Modules Php Name Surveys Op Results PollID 2 Shaving Cute Bare Sex Slaves 2007: verste klimaårhnoesinne - document.no

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Some even wondered if the earth is now nearing a "tipping point" in which climate change will become irreversible, sliding humanity into a future of floods, heat, and rising sea levels.

Some of the most dramatic changes occurred in the Arctic. At the ice pack's minimum extent last September, it was 23 per cent smaller than anytime since measurements began, with 1.6 million square kilometers more open water than in the previous record melt of 2005.

Water and air temperatures also exceeded previous maximums. "We have a consistent picture that we've really moved into record territory in the past four or five years," said John D. Walsh, Professor of Global Climate Change at the International Arctic Research Center for the University of Alaska, Fairbanks.

Greenland was the same, with snow melting over a greater fraction of the island than ever before. And it wasn't just a matter of one or two hot days.

"In some places, melting occurred for 25 or 30 days longer than average," said Marco Tedesco an assistant research scientist at the University of Maryland Baltimore County's Joint Center for Earth Systems Technology, and NASA-Goddard Space Flight Center . Since 1988, he added, the thawing zone has expanded, on average, by 19,000 square kilometers a year – an area nearly the size of Wales .

The cause is still under investigation, but one factor appears to have been an extended patch of sunny, dry weather that settled across much of the Arctic Ocean north of Canada. "These weather patterns could be the trigger that opened up the blinds, letting the sunlight in," said Graeme L. Stephens, University Distinguished Professor in the Department of Atmospheric Science at Colorado State University .

Once the melt set in, it produced conditions that set the stage for even-faster melting. In Greenland, for example, this winter's new snow will overlie a zone of older snow, melted and refrozen. That snow is darker than the fresh snow and lies ready and waiting to warm up quickly when next year's sunlight melt off the winter's powder.

The result: many scientists believe the Arctic Ocean has reached a "tipping point" in which nothing but deep and sustained global cooling could reverse the rapid trend toward diminishing summer ice. "Everything is working in consort toward a bluer or totally blue Arctic Ocean ," said Josefino Comiso, senior research scientist for polar oceanography at NASA-Goddard Space Flight Center.

Redaktør i Journalisten, Helge Øgrim, deltok i Dagsnytt Atten, og mente norske journalister driver forkynnelse i klimaspørsmålet. Han mente det er kontraproduktivt. En kommentator i the Times snakker om "klima-porno", dvs at miljøvernere skulle bli opphisset av dommedag. Dette er en grov forenkling og forsimpling av debatten. Det er bare noen år siden klima ikke var in. Nå har det slått inn for alvor. Skal mediene bebreides for at de tar saken på alvor?

Øgrim lot som om det finnes en seriøs og betydelig skeptikerfløy. Gjør det virkelig det? Hvorfor kommer den så ikke til uttrykk på amerikanske geofysikeres årsmøte?

2007: worst year for the environment

Posted by Hans Rustad on Desember 15, 2007 12:26 FM | Permalink